Vulcanizing outfit for repairing rubber articles



Feb. 16, 1954 c, GASCH] 2,668,984

VULCANIZING OUTFIT FOR REPAIRING RUBBER ARTICLES Filed 001;. 31, 1951 Patented Feb. 16, 1954 G OUTFIT" FUR, RUBBER ARTICEES Rene Glementloseph Gaschjt. Alencon Emilee.

Alpplibatiom Octobeniil, 1951, Serial Nbafififiow;

Claimsnriority, application: December 2151 354} r- 2 Glaims.

The. present. invention relates to vulcanizing outfits.- in. general. and? more particularly to an improved. vulcanizing outfit. for. repairing, rubber boots. and similar articles.

It. practially impossible. to. repair vamp and side portionsof; rubber. boots, and. other rubber articles of. intricate shape. with. the known means, because. the vamp ofl aboot. for. instance, is. formed with a great number of. curvilinear portions. the accessibility of which is inconsistent with .eifi'cient' andlasting. repairs.

It. is the object of the. presentinvention to provida afull'y adjustable. vul'oanizing outfit whereby. the above... inconveniences are avoidedland effici'ent. repairs can. be carried out; successfully on rubber articles regardless of the place in which the repair is'to be effected.

The; essential feature that. characterises the outfit according to the present invention is that the heating. device. thereof together with the clamping means co-operating therewith are movable along. a. SWBil'lrIlBCk; support. of quartercircle shape the center of which is adjacent to the outer end, and coincident. with thefulcrum axis, of. a supporting member consisting of. a

straight or bent swivel arm having its opposite or inner end' pivotally mounted" for movement about this axis in a bearing: provided near: the bottom end of the aforesaid swan-neck support. Byadequately combining the; movements oii these members. and of the article tobe repaired: the surface where the vulcanisation is to be made may be caused to register with the heating device and in all cases positioned at substantially right angles to the axis along which the vulcanizing pressure will be applied through said heating dethis specification illustrates diagrammatically by way of example one possible embodiment of a vulcanizing outfit according to the invention, intended more specifically for repairing boots supported by a curved arm. In the drawing:

Figure 1 is an elevational and part-sectional side. view or the tulcanizing outfit wher in. the l p n and heating nit; on the one andend the ourvedtarm onthe. other hand. are. shown in their vertical positions.

Figure 2: isa; similar yetv only elfevational Side view showing. the: clamping. and heating unit in its: lowermost, almost lmrizontal position...

Fi ur 3, is a front elerational view. of. the device.- showing. in. axial.- section the carriage wherey the. clampin and. heating unit. mounted on the. swan-neckz support. and. shown. in. the. same angular position.- as Figure 1,. the. curved arm being displaced by about 60 to the righin,

Reierring. to the. drawing... the. swan-neck support. I. of, the outflthas; a. quarter cireleshape, the eometrical center-- 015 which. fixed. point 2.. ad;- i 'cent to; the ou er end of; a swivel arm. 3; havin itsopposite or. inner.- endpivotally mounted. inv a be tin 4' formed near the. bottom end. oi the swan-neck. support. t. Thus. the, swivel arm. 3; i angularly movable. about. an. horizontal axis 5 passing through the aforesaid fixed point 2.. This fixed pointor' center 2;. remains. unchanged irrespective oi the. angular position of; the. swivel arm. 3... In. the: example. illustrated. the swaneneck support Lhas an. inverted-T crosssection andis formed: at its-bottom end. with. atfixine-plateexr tension 6 for anchoring thevulcanizing outfit to any suitable base plate or bench.

Above. the. bearing. portion. 4. of the swan-neck support It the. latter has. mounted. thereon. for motion therealong a carriage I supporting the clamping and heating unit of the outfit. The heating device will not be described herein as it may consist of any convenient and known system, usually housed in an interchangeable casing 8 which may have any desired or suitable shape. The clamping device proper consists of a screw rod 9 having its upper end H1 rigidly embedded in the carriage I (see Figure 1), a control handwheel ll, an internally-screwed hub [6 fast with the handwheel II and formed with a peripheral groove I5, a ring member [3 made of two halves and formed with an upper internal flange l4 engaging the peripheral groove IS, a tubular memher I 2 having its upper end axially fixed with the ring member l3 and its lower end fast with a round-headed push member I! through which the desired pressure is exerted on the casing 8. From this arrangement it is apparent that the required pressure is obtained by rotating the handwheel II in the suitable direction and that the casing 8 is lifted and releasedfrom the work piece by rotating the same handwheel in the opposite direction.

In case the repair is to be made at the toe end of the boot the outfit is set in the position of Figure 1. The boot [8 shown in dotted lines is first threaded on the curved arm 3 the tip of which has been capped beforehand with a pad IQ of rubber or other suitable material having substantially the outer contour of that inner portion of the boot.

If on the contrary the part to be repaired is the vamp of the boot the carriage I will be moved to the suitable angular position by actuating the carriage-supporting wheel comprising a pair of disks 20 having mounted therebetween a roller 2| of rubber or any other suitable material which bears on the outer side of the swan-neck support I. The wheel 20, 2| is rotatably mounted on a shaft 22 carrying a pair of side prongs 23 extending radially from the carriage I as shown. The latter carries a set of rollers 24 running along the inner side of the swan-neck support I and constantly urged against the latter by the resilient reaction of the elastic roller 2| which is slightly pressed against the support on assembling the outfit.

It will be easily understood that by rotating the wheel 29, 2| the complete clamping and heating unit is moved towards one or the other end of the support I whereby altering the radial position of this unit and that on releasing this wheel 20, 2| the same assembly is held in the position it occupies at that moment without it being necessary to clamp or screw in any fastening member.

If, on the other hand, the swivel arm 3 is moved angularly about its axis 5 to the left or to the right by the required amount any repair can be accomplished by presenting it at right angles with the axis along which the heating casing is pressed, irrespective of the position of the repair on the boot, the latter being threaded more or less on the rubber pad l9 carried by the swivel arm 3.

Of course the specific embodiment illustrated in the drawing and described hereinabove is given solely by way of example, it being understood that many modifications may be brought thereto without departing from the spirit and scope of the invention.

I claim:

1. An adjustable vulcanizing apparatus for repairing rubber articles such as boots and the like, comprising an elongated curved support having a quarter circle configuration and opposed curved sides thereof forming trackways, a resilient roller movably mounted on one of said trackways, rollers movably mounted on the opposite of said trackways, means connecting said rollers on both trackways and maintaining said resilient roller in frictional engagement with its respective trackway, heating means, clamping means connected to said roller connecting means and said heating means for pressing the same against the article being repaired, an arm pivotally connected to said support for being turned around an axis extending on a radius of said support with an end of said arm being positioned substantially at the center of the quarter circle formed by said support.

. 2. An. adjustable vulcanizing apparatus for repairing rubber articles such as boots and the like comprising an elongated longitudinally curved support having a quarter circle configuration, clamping means slidably and frictionally connected to said support while extending radially therefrom and being longitudinally extensible, heating means carried by said clamping means, a circular bearing opening formed in one end of said support with the axis thereof extending radially of said support, an arm for supporting the article to be repaired having a straight end portion of circular cross section rotatably positioned in said support bearing opening, the remainder of said arm being curved longitudinally with the free end thereof positioned substantially at the center of the quarter circle formed by said support and the free end portion of said arm extending towards the other end of said support.

RENE CLEMENT JOSEPH GASCHI.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 1,234,431 White July 24, 1917 2,347,952 James May 2, 1944 FOREIGN PATENTS Number Country Date 395,035 France Feb. 8, 1909 468,608 Germany Nov. 16, 1928 957,574 France Feb. 21, 1950 

